Post-insemination selection dominates pre-insemination selection in driving rapid evolution of male competitive ability.

ABSTRACT: Sexual reproduction is a complex process that contributes to differences between the sexes and divergence between species. From a male's perspective, sexual selection can optimize reproductive success by acting on the variance in mating success (pre-insemination selection) as well as the variance in fertilization success (post-insemination selection). The balance between pre- and post-insemination selection has not yet been investigated using a strong hypothesis-testing framework that directly quantifies the effects of post-insemination selection on the evolution of reproductive success. Here we use experimental evolution of a uniquely engineered genetic system that allows sperm production to be turned off and on in obligate male-female populations of Caenorhabditis elegans. We show that e

SUBMITTER: Kasimatis KR 

PROVIDER: S-EPMC8880957 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature